
IDCF Cloud Ransomware Attack Exposes Critical Gaps in Multi-Cloud Security
On October 7, 2026, IDC Frontier's IDCF Cloud service, a major Japanese cloud infrastructure platform serving 495 companies and government entities, suffered a devastating ransomware attack. The threat actors claimed to have encrypted 225 databases containing 3.6 PB of data, compromised 239 hypervisors, sealed 16,000 VM disks, and wiped 554,153 snapshots within just seven minutes of breaching the East Japan Region 1 infrastructure. The attack forced a complete shutdown of the affected data center cluster, with IDC Frontier proactively disabling customer access across all regions while conducting security verification. This incident reflects the alarming 43% surge in Japanese cybersecurity incidents during 2026, with researchers attributing the increase to AI-powered attack tools that enable rapid identification and exploitation of security weaknesses at unprecedented scale and speed.
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